.i3-content{
       
        width: 100%;
        height: 528px;
       
      
         .i3-i{
        width:33%;
        height: 264px;
        background-color: white;
       
       
        
        font-size: 18px;
      
        float: left;
        margin-right: 2px;
        margin-bottom: 1px;
        
        .i3-img{
            width: 35.3%;
            height: 264px;
             float: left;
           
      
        }
        
        
        
        
         .i3-botton{
               width: 100%;
               max-width: 445px;
               height: 85px;
              position: relative;
               top:-89px;
                background-color: rgba(0,0,0,0.5);
               z-index: 100;
               font-size: 18px;
               text-align: center;
               line-height: 85px;
               color: white;
                 
                 
             
               
         }
         .i3-botton1 {
             width: 100%;
              max-width: 446px;
               height: 85px;
              position: relative;
               top:-88px;
                background-color: rgba(0,0,0,0.5);
               z-index: 100;
               text-align: center;
               line-height: 85px;
               color: white;
              
        }
        .i3-botton2 {
            width: 100%;
             max-width: 455px;
               height: 85px;
              position: relative;
               top:-88px;
               background-color: rgba(0,0,0,0.5);
              
               text-align: center;
               line-height: 85px;
               color: white;
              
        }
        .i3-botton3 {
            width: 100%;
             max-width: 446px;
               height: 85px;
              position: relative;
               top:-89px;
                background-color: rgba(0,0,0,0.5);
               z-index: 100;
               text-align: center;
               line-height: 85px;
               color: white;
               
        }
        .i3-botton4 {
            width: 100%;
             max-width: 444px;
               height: 85px;
              position: relative;
               top:-89px;
                background-color: rgba(0,0,0,0.5);
               z-index: 100;
               text-align: center;
               line-height: 85px;
               color: white;
               margin-left: 1px;
              
        }
        .i3-botton5 {
            width: 100%;
             max-width: 455px;
               height: 85px;
              position: relative;
               top:-89px;
              background-color: rgba(0,0,0,0.5);
               text-align: center;
               line-height: 85px;
               color: white;
               margin-left: 1px;
              
        }
      }
  
}
//添加响应式


